EUVD-2026-26664Severity by source
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
5DescriptionCVE.org
Software installed and run as a non-privileged user may conduct improper GPU system calls to force GPU to write to arbitrary physical memory pages.
Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel and drivers running on the platform altering their behaviour.
This attack can lead the GPU to perform write operations on restricted internal GPU buffers that can lead to a second order affect of corrupted arbitrary physical memory.
AnalysisAI
Local privilege escalation in Imagination Technologies Graphics DDK allows low-privileged users to corrupt kernel memory and driver data structures through malicious GPU system calls. The vulnerability affects DDK versions 1.18 RTM, 23.2 RTM, 24.1-24.2 RTM, and 25.1-25.3 RTM. Attackers with local access can force the GPU to write to arbitrary physical memory pages, including restricted internal GPU buffers and kernel memory regions, achieving complete system compromise (CVSS 7.8). EPSS data not available; no active exploitation confirmed per CISA SSVC framework (exploitation status: none), but the local attack vector and total technical impact make this critical for systems with untrusted local users.
Technical ContextAI
This vulnerability exploits improper validation in the Graphics DDK (Driver Development Kit) GPU system call interface, classified as CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). The DDK manages communication between userspace applications and GPU hardware through system calls. The flaw allows non-privileged processes to craft malicious GPU commands that bypass memory protection boundaries, causing the GPU DMA engine to write to physical memory addresses outside its allocated regions. This represents a classic DMA attack where a peripheral device (GPU) is weaponized to access host memory that should be protected by the IOMMU or driver access controls. The second-order effect occurs when corrupted GPU internal buffers cause subsequent legitimate operations to write to attacker-controlled addresses, effectively turning the GPU into a kernel memory write primitive.
RemediationAI
Apply vendor-released patches from Imagination Technologies immediately, prioritizing systems with multiple local users or untrusted workloads. Consult the official security advisory at https://www.imaginationtech.com/gpu-driver-vulnerabilities/ for patched DDK versions specific to your platform and GPU model. Exact fixed version numbers are not independently confirmed from available NVD data; verify with vendor documentation before deployment. For systems where immediate patching is not feasible, implement compensating controls: (1) Restrict local user access to trusted accounts only - remove or disable unprivileged user accounts on affected GPU-equipped systems, understanding this breaks multi-user workflows; (2) Deploy mandatory access control (SELinux/AppArmor) policies that deny GPU device access to non-essential processes, noting this may break GPU-accelerated applications; (3) Enable IOMMU strict mode if supported by platform firmware to limit DMA-capable device access, with potential performance penalty of 5-15% on GPU workloads; (4) For containerized environments, block GPU device passthrough to untrusted containers until patched drivers are deployed. These mitigations reduce attack surface but do not eliminate the vulnerability.
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Same weakness CWE-119 – Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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